Information capacity formula of quantum optical channels

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dc.creatorSohma, Masaki
dc.creatorHirota, Osamu
dc.date2001-05-10
dc.date.accessioned2026-07-07T06:02:04Z
dc.date.available2026-07-07T06:02:04Z
dc.descriptionThe applications of the general formulae of channel capacity developed in the quantum information theory to evaluation of information transmission capacity of optical channel are interesting subjects. In this review paper, we will point out that the formulation based on only classical-quantum channel mapping model may be inadequate when one takes into account a power constraint for noisy channel. To define the power constraint well, we should explicitly consider how quantum states are conveyed through a transmission channel. Basing on such consideration, we calculate a capacity formula for an attenuated noisy optical channel with genreral Gaussian state input; this gives certain progress beyond the example in our former paper.
dc.description20 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0105042
dc.identifierhttp://arxiv.org/abs/quant-ph/0105042
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/89476
dc.subjectQuantum Physics
dc.titleInformation capacity formula of quantum optical channels
dc.typetext

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